17 And having all laid hold on Sosthenes the ruler of the synagogue, they beat him before the judgment-seat. And Gallio troubled himself about none of these things.

18 And Paul, having yet stayed [there] many days, took leave of the brethren and sailed thence to Syria, and with him Priscilla and Aquila, having shorn his head in Cenchrea, for he had a vow; 19 and he arrived at Ephesus, and left them there. But entering himself into the synagogue he reasoned with the Jews. 20 And when they asked him that he would remain for a longer time [with them] he did not accede, 21 but bade them farewell, saying, [I must by all means keep the coming feast at Jerusalem]; I will return to you again, if God will: and he sailed away from Ephesus.

Paul Returns to Antioch and Begins the Third Missionary Journey

22 And landing at Caesarea, and having gone up and saluted the assembly, he went down to Antioch. 23 And having stayed [there] some time, he went forth, passing in order through the country of Galatia and Phrygia, establishing all the disciples.

Apollos Preaches at Ephesus

24 But a certain Jew, Apollos by name, an Alexandrian by race, an eloquent man, who was mighty in the scriptures, arrived at Ephesus. 25 He was instructed in the way of the Lord, and being fervent in his spirit, he spoke and taught exactly the things concerning Jesus, knowing only the baptism of John. 26 And he began to speak boldly in the synagogue. And Aquila and Priscilla, having heard him, took him to [them] and unfolded to him the way of God more exactly. 27 And when he purposed to go into Achaia, the brethren wrote to the disciples engaging them to receive him, who, being come, contributed much to those who believed through grace. 28 For he with great force convinced the Jews publicly, shewing by the scriptures that Jesus was the Christ.

Matthew Henry's Commentary on Acts 18:17-38

Commentary on Acts 18:12-17

(Read Acts 18:12-17)

Paul was about to show that he did not teach men to worship God contrary to law; but the judge would not allow the Jews to complain to him of what was not within his office. It was right in Gallio that he left the Jews to themselves in matters relating to their religion, but yet would not let them, under pretence of that, persecute another. But it was wrong to speak slightly of a law and religion which he might have known to be of God, and which he ought to have acquainted himself with. In what way God is to be worshipped, whether Jesus be the Messiah, and whether the gospel be a Divine revelation, are not questions of words and names, they are questions of vast importance. Gallio spoke as if he boasted of his ignorance of the Scriptures, as if the law of God was beneath his notice. Gallio cared for none of these things. If he cared not for the affronts of bad men, it was commendable; but if he concerned not himself for the abuses done to good men, his indifference was carried too far. And those who see and hear of the sufferings of God's people, and have no feeling with them, or care for them, who do not pity and pray for them, are of the same spirit as Gallio, who cared for none of these things.

Commentary on Acts 18:18-23

(Read Acts 18:18-23)

While Paul found he laboured not in vain, he continued labouring. Our times are in God's hand; we purpose, but he disposes; therefore we must make all promises with submission to the will of God; not only if providence permits, but if God does not otherwise direct our motions. A very good refreshment it is to a faithful minister, to have for awhile the society of his brethren. Disciples are compassed about with infirmity; ministers must do what they can to strengthen them, by directing them to Christ, who is their Strength. Let us earnestly seek, in our several places, to promote the cause of Christ, forming plans that appear to us most proper, but relying on the Lord to bring them to pass if he sees good.

Commentary on Acts 18:24-28

(Read Acts 18:24-28)

Apollos taught in the gospel of Christ, as far as John's ministry would carry him, and no further. We cannot but think he had heard of Christ's death and resurrection, but he was not informed as to the mystery of them. Though he had not the miraculous gifts of the Spirit, as the apostles, he made use of the gifts he had. The dispensation of the Spirit, whatever the measure of it may be, is given to every man to profit withal. He was a lively, affectionate preacher; fervent in spirit. He was full of zeal for the glory of God and the salvation of precious souls. Here was a complete man of God, thoroughly furnished for his work. Aquila and Priscilla encouraged his ministry, by attendance upon it. They did not despise Apollos themselves, or undervalue him to others; but considered the disadvantages he had laboured under. And having themselves got knowledge in the truths of the gospel by their long intercourse with Paul, they told what they knew to him. Young scholars may gain a great deal by converse with old Christians. Those who do believe through grace, yet still need help. As long as they are in this world, there are remainders of unbelief, and something lacking in their faith to be perfected, and the work of faith to be fulfilled. If the Jews were convinced that Jesus is Christ, even their own law would teach them to hear him. The business of ministers is to preach Christ. Not only to preach the truth, but to prove and defend it, with meekness, yet with power.